APA

Ballantyne R. M., Bown D., . (1978). The Coral Island. London: Purnell Books.

Chicago

Ballantyne R M, Bown Derick, . 1978. The Coral Island. London: Purnell Books.

Harvard

Ballantyne R. M., Bown D., . (1978). The Coral Island. London: Purnell Books.

MLA

Ballantyne R M, Bown Derick, . The Coral Island. London: Purnell Books. 1978.